var tnazvy = new Array("Evoluce","Binary World","Smajlíci","Warez Pirate","Linux Inside","Linux Inside 2","RTFM","Crazy Text","Dead Pixels","I see fragged people","Pac Man","Happy Tetris","Space invaders","MP345","Vlk - logo bílé","Vlk - logo červené");
var turl = new Array("19,evoluce","2,binary-world","14,smajlici","15,warez-pirate","11,linux-inside","12,linux-inside-2","1,rtfm","3,crazy-text","10,dead-pixels","4,i-see-fragged-people","5,pac-man","13,happy-tetris","18,space-invaders","17,mp345","6,vlk-logo-bile","7,vlk-logo-cervene");

function init() {
   $("#trika_div").css("position","relative");
   $("#trika_div").css("width","250px");
   $("#trika_div").css("height","250px");
   var nahoda = Math.floor(Math.random()*15) + 1;
   $("#trika_div").html("<div id='trika_div_prvni' style='position: absolute; top: 0px; left: 0px;'></div><div id='trika_div_druhy' style='position: absolute; top: 0px; left: 0px; display: none;'></div><div id='trika_div_inp_div' style='display: none;'>prvni</div><div id='trika_div_inp_num' style='display: none;'>" + nahoda + "</div>");
   $("#trika_div_prvni").html("<a href='http://www.geekworld.cz/?" + turl[(nahoda - 1)] +"' target='_blank' id='trika_div_url_prvni' style='text-decoration: none; color: #E15603;'><img src='grafika/trika/" + nahoda + ".png' border='0' alt='" + tnazvy[(nahoda - 1)] + "' title='" + tnazvy[(nahoda - 1)] + "' id='trika_div_img_prvni'><br><span style='text-align: center; font-weight: bold; color: #E15603; font-size: 12px;' id='trika_div_nazev_prvni'>" + tnazvy[(nahoda - 1)] + "</span></a>");   
   $("#trika_div_druhy").html("<a href='http://www.geekworld.cz/?" + turl[nahoda] +"' target='_blank' id='trika_div_url_druhy' style='text-decoration: none; color: #E15603;'><img src='grafika/trika/" + (nahoda + 1) + ".png' border='0' alt='" + tnazvy[nahoda] + "' title='" + tnazvy[nahoda] + "' id='trika_div_img_druhy'><br><span style='text-align: center; font-weight: bold; color: #E15603; font-size: 12px;' id='trika_div_nazev_druhy'>" + tnazvy[nahoda] + "</span></a>");
}

function slide() {
   var next;
   var num = parseInt($('#trika_div_inp_num').text());
   if (num == 16) {
      next = 1;
   } else {
      next = num + 1;
   }
   function imgsrcp() {
      var src;  
      if (parseInt($('#trika_div_inp_num').text()) == 15) {
         src = 1;   
      } else if (parseInt($('#trika_div_inp_num').text()) == 16) {
         src = 2;
      } else {
         src = parseInt($('#trika_div_inp_num').text()) + 2;
      } 
      $("#trika_div_img_prvni").attr("src","grafika/trika/" + src + ".png");
      $("#trika_div_img_prvni").attr("title",tnazvy[(src - 1)]);
      $("#trika_div_img_prvni").attr("alt",tnazvy[(src - 1)]);
      $("#trika_div_url_prvni").attr("href","http://www.geekworld.cz/?" + turl[(src - 1)]);
      $("#trika_div_nazev_prvni").text(tnazvy[(src - 1)]);
      $("#trika_div_inp_num").text(src - 1);   
   }
   function imgsrcd() {
      var src;  
      if (parseInt($('#trika_div_inp_num').text()) == 15) {
         src = 1;   
      } else if (parseInt($('#trika_div_inp_num').text()) == 16) {
         src = 2;
      } else {
         src = parseInt($('#trika_div_inp_num').text()) + 2;
      } 
      $("#trika_div_img_druhy").attr("src","grafika/trika/" + src + ".png");
      $("#trika_div_img_druhy").attr("title",tnazvy[(src - 1)]);
      $("#trika_div_img_druhy").attr("alt",tnazvy[(src - 1)]);
      $("#trika_div_url_druhy").attr("href","http://www.geekworld.cz/?" + turl[(src - 1)]);
      $("#trika_div_nazev_druhy").text(tnazvy[(src - 1)]);
      $("#trika_div_inp_num").text(src - 1);   
   }
   if ($('#trika_div_inp_div').text() == "prvni") {
      $("#trika_div_prvni").fadeOut(1000, imgsrcp);
      $("#trika_div_druhy").fadeIn(1000);
      $("#trika_div_inp_div").text("druhy");
   } else {
      $("#trika_div_prvni").fadeIn(1000);
      $("#trika_div_druhy").fadeOut(1000, imgsrcd);
      $("#trika_div_inp_div").text("prvni");
   }   
}

$(document).ready(function(){
   init();   
   window.setInterval("slide()", 15000); 
});